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</o:shapelayout></xml><![endif]--></head><body lang=NL link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D'>Hank, Alan<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D'>A turn indicator can be useful; on a flat seafloor you can make a 90 deg turn without noticing. The fluxgate compass seems to slow to prevent this. The gyro compass is quicker but get inaccurate with time.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D'> Regards, Emile<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>Van:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> Personal_Submersibles [mailto:personal_submersibles-bounces@psubs.org] <b>Namens </b>Alan James via Personal_Submersibles<br><b>Verzonden:</b> maandag 27 juni 2016 13:11<br><b>Aan:</b> Personal Submersibles General Discussion<br><b>Onderwerp:</b> Re: [PSUBS-MAILIST] gyro compass<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><div><div id="yui_3_16_0_ym19_1_1467022625929_4050"><p class=MsoNormal style='background:white'><span style='font-size:9.5pt;font-family:"Helvetica Neue";color:black'>Hank, <o:p></o:p></span></p></div><div id="yui_3_16_0_ym19_1_1467022625929_3987"><p class=MsoNormal style='background:white'><span style='font-size:9.5pt;font-family:"Helvetica Neue";color:black'>why would you want a turn & bank indicator above some sought of compass?<o:p></o:p></span></p></div><div id="yui_3_16_0_ym19_1_1467022625929_3988"><p class=MsoNormal style='background:white'><span style='font-size:9.5pt;font-family:"Helvetica Neue";color:black'>There are a multitude of inexpensive underwater compasses that scuba divers use,<o:p></o:p></span></p></div><div id="yui_3_16_0_ym19_1_1467022625929_4069"><p class=MsoNormal style='background:white'><span style='font-size:9.5pt;font-family:"Helvetica Neue";color:black'>although they may be a bit small to be read at a distance. Possibly there is some<o:p></o:p></span></p></div><div id="yui_3_16_0_ym19_1_1467022625929_4076"><p class=MsoNormal style='background:white'><span style='font-size:9.5pt;font-family:"Helvetica Neue";color:black'>issue with the compression of the oil stopping your compass from functioning?<o:p></o:p></span></p></div><div id="yui_3_16_0_ym19_1_1467022625929_4111"><p class=MsoNormal style='background:white'><span style='font-size:9.5pt;font-family:"Helvetica Neue";color:black'>Mounting the compass outside the hull seems to be standard practice & I haven't<o:p></o:p></span></p></div><div id="yui_3_16_0_ym19_1_1467022625929_4112"><p class=MsoNormal style='background:white'><span style='font-size:9.5pt;font-family:"Helvetica Neue";color:black'>heard of any failing. Perhaps someone with previous issues with them could comment.<o:p></o:p></span></p></div><div id="yui_3_16_0_ym19_1_1467022625929_4128"><p class=MsoNormal style='background:white'><span style='font-size:9.5pt;font-family:"Helvetica Neue";color:black'>Alan<o:p></o:p></span></p></div><div id="yui_3_16_0_ym19_1_1467022625929_4057"><p class=MsoNormal style='background:white'><span style='font-size:9.5pt;font-family:"Helvetica Neue";color:black'> <o:p></o:p></span></p></div><div id="yui_3_16_0_ym19_1_1467022625929_3990"><p class=MsoNormal style='margin-bottom:12.0pt;background:white'><span style='font-size:9.5pt;font-family:"Helvetica Neue";color:black'><o:p> </o:p></span></p></div><div id="yui_3_16_0_ym19_1_1467022625929_3999"><div id="yui_3_16_0_ym19_1_1467022625929_3998"><div id="yui_3_16_0_ym19_1_1467022625929_3997"><div id="yui_3_16_0_ym19_1_1467022625929_3996"><div class=MsoNormal align=center style='text-align:center;background:white'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'><hr size=1 width="100%" align=center></span></div><p class=MsoNormal style='background:white'><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>From:</span></b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'> hank pronk via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br><b>To:</b> Personal Submersibles General Discussion <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> <br><b>Sent:</b> Monday, June 27, 2016 10:37 PM<br><b>Subject:</b> Re: [PSUBS-MAILIST] gyro compass</span><span style='font-size:9.5pt;font-family:"Helvetica Neue";color:black'><o:p></o:p></span></p></div><div id="yui_3_16_0_ym19_1_1467022625929_4004"><p class=MsoNormal style='background:white'><span style='font-size:9.5pt;font-family:"Helvetica Neue";color:black'><o:p> </o:p></span></p><div id=yiv4304485160><div id="yui_3_16_0_ym19_1_1467022625929_4003"><div id="yui_3_16_0_ym19_1_1467022625929_4002"><div id="yui_3_16_0_ym19_1_1467022625929_4018"><p class=MsoNormal style='background:white'><span style='font-size:7.0pt;font-family:"Helvetica Neue";color:black'>Kieth,<o:p></o:p></span></p></div><div id="yui_3_16_0_ym19_1_1467022625929_4001"><p class=MsoNormal style='background:white'><span style='font-size:7.0pt;font-family:"Helvetica Neue";color:black'>I stand corrected, a turn and bank indicator is just the ticket and tons of them on eBay for cheap. I was focusing on compass only, but these indicators are much cheaper and more available. <o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='font-size:7.0pt;font-family:"Helvetica Neue";color:black'>Thanks' for the tip<o:p></o:p></span></p></div><div id="yui_3_16_0_ym19_1_1467022625929_4031"><p class=MsoNormal style='background:white'><span style='font-size:7.0pt;font-family:"Helvetica Neue";color:black'>Hank<o:p></o:p></span></p></div><div id="yui_3_16_0_ym19_1_1467022625929_4017"><p class=MsoNormal style='margin-bottom:12.0pt;background:white'><span style='font-size:7.0pt;font-family:"Helvetica Neue";color:black'><o:p> </o:p></span></p></div><div id="yui_3_16_0_ym19_1_1467022625929_4007"><div id="yui_3_16_0_ym19_1_1467022625929_4006"><div id="yui_3_16_0_ym19_1_1467022625929_4005"><div id=yiv4304485160yqt19908><div id="yui_3_16_0_ym19_1_1467022625929_4016"><p class=MsoNormal style='background:white'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>On Sunday, June 26, 2016 6:25 PM, hank pronk via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:</span><span style='font-size:9.5pt;font-family:"Helvetica Neue";color:black'><o:p></o:p></span></p></div><p class=MsoNormal style='margin-bottom:12.0pt;background:white'><span style='font-size:9.5pt;font-family:"Helvetica Neue";color:black'><o:p> </o:p></span></p><div id="yui_3_16_0_ym19_1_1467022625929_4010"><div id=yiv4304485160><div id="yui_3_16_0_ym19_1_1467022625929_4009"><div id="yui_3_16_0_ym19_1_1467022625929_4008"><div id="yiv4304485160yui_3_16_0_ym19_1_1466986723588_2882"><p class=MsoNormal style='background:white'><span style='font-size:7.0pt;font-family:"Helvetica Neue";color:black'>Hi Kieth,<o:p></o:p></span></p></div><div id="yiv4304485160yui_3_16_0_ym19_1_1466986723588_2882"><p class=MsoNormal style='background:white'><span style='font-size:7.0pt;font-family:"Helvetica Neue";color:black'>My understanding is the aircraft units are noisy, I assume that is the air units. They are hard to find in guaranteed working condition for a price that works for me. If you know of any for a descent price-please let me know.<o:p></o:p></span></p></div><div id="yiv4304485160yui_3_16_0_ym19_1_1466986723588_2882"><p class=MsoNormal style='background:white'><span style='font-size:7.0pt;font-family:"Helvetica Neue";color:black'>Hank<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-bottom:12.0pt;background:white'><span style='font-size:7.0pt;font-family:"Helvetica Neue";color:black'><o:p> </o:p></span></p></div><div><div><div><div id=yiv4304485160yqt13119><div><p class=MsoNormal style='background:white'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>On Sunday, June 26, 2016 6:16 PM, k6fee via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:</span><span style='font-size:9.5pt;font-family:"Helvetica Neue";color:black'><o:p></o:p></span></p></div><p class=MsoNormal style='margin-bottom:12.0pt;background:white'><span style='font-size:9.5pt;font-family:"Helvetica Neue";color:black'><o:p> </o:p></span></p><div><div id=yiv4304485160><div><div><p class=MsoNormal style='background:white'><span style='font-size:9.5pt;font-family:"Helvetica Neue";color:black'>Hank, <o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='font-size:9.5pt;font-family:"Helvetica Neue";color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='font-size:9.5pt;font-family:"Helvetica Neue";color:black'>Try using a gyro compass ( or atifical horizon) from an aircraft. They sre either air, vaccum or electric powered.<o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='font-size:9.5pt;font-family:"Helvetica Neue";color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='font-size:9.5pt;font-family:"Helvetica Neue";color:black'>Keith <o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='font-size:9.5pt;font-family:"Helvetica Neue";color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='font-size:9.5pt;font-family:"Helvetica Neue";color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='font-size:9.5pt;font-family:"Helvetica Neue";color:black'><o:p> </o:p></span></p></div><div id="yiv4304485160composer_signature"><div><p class=MsoNormal style='background:white'><span style='font-size:8.0pt;font-family:"Helvetica Neue";color:#575757'>Sent from my Verizon, Samsung Galaxy smartphone<o:p></o:p></span></p></div></div><div><p class=MsoNormal style='background:white'><span style='font-size:9.5pt;font-family:"Helvetica Neue";color:black'><o:p> </o:p></span></p></div><div id=yiv4304485160yqt38070><div><div><p class=MsoNormal style='background:white'><span style='font-size:9.5pt;font-family:"Helvetica Neue";color:black'>-------- Original message --------<o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='font-size:9.5pt;font-family:"Helvetica Neue";color:black'>From: hank pronk via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> <o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='font-size:9.5pt;font-family:"Helvetica Neue";color:black'>Date: 6/26/16 4:11 PM (GMT-08:00) <o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='font-size:9.5pt;font-family:"Helvetica Neue";color:black'>To: Personal Submersibles General Discussion <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> <o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='font-size:9.5pt;font-family:"Helvetica Neue";color:black'>Subject: [PSUBS-MAILIST] gyro compass <o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='font-size:9.5pt;font-family:"Helvetica Neue";color:black'><o:p> </o:p></span></p></div></div><div><div id="yiv4304485160yui_3_16_0_ym19_1_1466982389727_2659"><p class=MsoNormal style='background:white'><span style='font-size:7.0pt;font-family:"Helvetica Neue";color:black'>I am going to try to make a gyro compass, looks doable. I don't care about what direction I am going-I just want to go in a strait line. I will point the sub in the direction I want to go at the surface, then turn on the gyro and sink. Then I can just follow the gyro.<o:p></o:p></span></p></div><div id="yiv4304485160yui_3_16_0_ym19_1_1466982389727_2659"><p class=MsoNormal style='background:white'><span style='font-size:7.0pt;font-family:"Helvetica Neue";color:black'>Hank<o:p></o:p></span></p></div></div></div></div></div><p class=MsoNormal style='background:white'><span style='font-size:9.5pt;font-family:"Helvetica Neue";color:black'><o:p> </o:p></span></p><div id=yiv4304485160yqt03987><p class=MsoNormal style='background:white'><span style='font-size:9.5pt;font-family:"Helvetica Neue";color:black'>_______________________________________________<br>Personal_Submersibles mailing list<br><a href="mailto:Personal_Submersibles@psubs.org" target="_blank">Personal_Submersibles@psubs.org</a><br><a href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" target="_blank">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><o:p></o:p></span></p></div><p class=MsoNormal style='margin-bottom:12.0pt;background:white'><span style='font-size:9.5pt;font-family:"Helvetica Neue";color:black'><o:p> </o:p></span></p></div></div></div></div></div></div></div></div><p class=MsoNormal style='background:white'><span style='font-size:9.5pt;font-family:"Helvetica Neue";color:black'><o:p> </o:p></span></p><div id=yiv4304485160yqt25744><p class=MsoNormal style='background:white'><span style='font-size:9.5pt;font-family:"Helvetica Neue";color:black'>_______________________________________________<br>Personal_Submersibles mailing list<br><a href="mailto:Personal_Submersibles@psubs.org" target="_blank">Personal_Submersibles@psubs.org</a><br><a href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" target="_blank">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><o:p></o:p></span></p></div><p class=MsoNormal style='margin-bottom:12.0pt;background:white'><span style='font-size:9.5pt;font-family:"Helvetica Neue";color:black'><o:p> </o:p></span></p></div></div></div></div></div></div></div></div><p class=MsoNormal style='background:white'><span style='font-size:9.5pt;font-family:"Helvetica Neue";color:black'><o:p> </o:p></span></p><div id=yqt23127><p class=MsoNormal style='background:white'><span style='font-size:9.5pt;font-family:"Helvetica Neue";color:black'>_______________________________________________<br>Personal_Submersibles mailing list<br><a href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br><a href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" target="_blank">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><o:p></o:p></span></p></div><p class=MsoNormal style='margin-bottom:12.0pt;background:white'><span style='font-size:9.5pt;font-family:"Helvetica Neue";color:black'><o:p> </o:p></span></p></div></div></div></div></div></div></body></html>